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Definitions

validate

[val-i-deyt] / ˈvæl ɪˌdeɪt /
VERB
ascertain the truth, authenticity of something
Synonyms
STRONGEST
approve certify confirm corroborate endorse justify legalize legitimize ratify substantiate verify
STRONG
authenticate authorize constitute okay sanction
WEAK
John Hancock bear out give stamp of approval give the go-ahead give the green light give the nod make binding make legal make stick rubber-stamp set seal on sign off on
Antonyms
STRONGEST
contradict deny disagree disallow disapprove discredit disprove invalidate oppose refuse reject repudiate veto

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Miners use specialized computers to validate transactions and earn newly minted bitcoin and transaction fees, making their businesses highly sensitive to bitcoin prices, electricity costs and the efficiency of their machines.

From MarketWatch • Apr. 9, 2026

Horror-novel fans had speculated online for months about the book’s authorship, and in January Pangram CEO Max Spero stepped in to validate the chatter.

From The Wall Street Journal • Apr. 3, 2026

To validate the approach, researchers used 352 urine samples that had already been collected during routine testing at Basingstoke and North Hampshire Hospital.

From Science Daily • Mar. 31, 2026

Backing this view are numerous scientific papers, including a peer-reviewed study where IBM and university researchers created a previously unknown molecule and used a quantum computer to validate its physical properties.

From Barron's • Mar. 12, 2026

Annie looked to the side, like there was somebody else who could validate Luke’s weirdness.

From "We'll Fly Away" by Bryan Bliss